Ventilator for chimneys.



No. 653,097. Patented July 3, |900..

' E. KREUTZBERG.

VENTILATUR FOR CHIMNEYS.

(Application led Mar. 21, 1900.)

(No Model.)

AERNST KREUTZBERQOF MARINE, iLLiNoIS, AssIGNoR oF ONE-HALF To JOHN n. BRANDES, JR., on SAME` PLACE.

VENTILATOR FOR CHIM NEYS.

SPECIFICATION forming part of Letters Patent No. 653,097, dated July 3, 1900.

Application filed March 2l, 1900. Serial No. 9,598. (No model.)

To all whom it may concern:

Be it known that I, ERNST KREUTZBERG, a citizen of the United States, residing at Marine, in the county of Madison and State of Illinois, have invented a new and useful Ventilator for Chimneys, of which the following The invention consists in the constructionf and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a perspective view of a ventilator for chimneys constructed in accordance with this invention, a portion.

of the outercasing being broken away to illustrate the arrangement of the annular series of flues or passages. Fig. 2 is a vertical sectional View of the same. Fig. 3 is a horizontal sectional view.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

1 designates an inner casing or pipe designed to be constructed of sections 2 and 3, as illustrated in Figs. 1 and 2 of the drawings, and extending through and projecting beyond an outer casing et, which is cylindrical. The outer casing 4, which is spaced from the inner casing or pipe, is provided at its upper and lower ends with inclined outwardly-extending flanges or portions 5 and 6, forming flaring mouths or entrances to increase the volume of air. passing through the spaces between the inner and outer casings, and the upper flange may be scalloped or otherwise ornamented, if desired. The inner casing or pipe forms a continuation of the chimney proper, and a tapering cap is supported above the same by braces 8 to protect the device and to prevent rain or the like from beating down the The annular intervening space between the inner and outer casings is divided into vertical spaces or iiues 9 and 10 by metallic boxes 11, and these fines or passages 9 and 10 are alternately open and lclosed to permit air to pass directly through the intervening space between the inner and outer casings and also to cause air to pass from such intervening space into the inner casing or pipe at a point below the top of the same, whereby the upward draft or tendency of the products of combustion to escape from the chimney will be increased. Each metallic box consists of an inner wall or back 14 and side walls 15, the inner wall or back 14 being secured by rivets or other suitable fastening devices to the inner casing or pipe, and the sides 15, which form approximately-radial partitions, extend outward from the back or inner wall to the inner face of the outer casing and are provided thereat with laterally-proj ecting flanges 16, which are rivetedor otherwisesecured to the outer casing and which support the same in the position shown in Figs. 1 and 2.

The passages or spaces inclosed by the boxes are openat the top and bottom to permit air to pass through them in either direction, and the spaces or passages between the boxes are closed at the top by caps 17 to cause air `to pass through an annular series of apertures 1S of theinner casing orpipe. The apertures are located near the lower ends of the passages or spaces 10, as clearly shown in Figs. 1 and 2, and the inner casing or pipe is provided at its interior with an annular series of guards 18, located at the said apertures 18. The caps 17 which are disposed horizontally, connect the sides 15 of the adjacent boxes and are provided with depending side iianges 19,which are riveted or otherwise secured to the inner faces of the sides 15. The caps are provided at their inner ends with upwardlyextending lips or tongues 20, which are riveted or otherwise secured to the inner casing or pipe.

The guards or shields 18, which are arranged on the interior of the inner casing or pipe, taper downwardly, being provided with inclined inner walls and tapering side walls,

ICO

and these walls, as clearly shown in Fig. 2, are preferably flanged and rivetedY to the inner casing or pipe. The guards or shields 18a deliect the smoke and other products of combustion from the apertures 18, preventing the same from choking up the apertures 18 andv causing the products of combustion to create a suction to produce a draft or circulation through the apertures, whereby the upward draft in the chimney is increased. The direction of the wind blowing around the ventilator changes suddenly, blowing first in one direction and thenin another, and the exit of the smoke and other products of combustion from the inner casing will cause the air surrounding the upper edges of the inner casingto-pass downward through the intervening spaces or passages 9, between the in.- nerand. outer casings, and there will be no tendency of such air to pass down the inner casingor chimney proper. Air blowing into the bottomof the outer casingr will pass upward throughthe same and also intoand upward'. through the upper portion of the inner casing,which Willresult in an increased draf-t. Also the heat from the products of combustionlwill cause the air. betweentheinner and outer casings to become heated. and to ascend,such air passingv upward through the openpassages 9 and through the apertures 18 atthe lower ends of the closed passages lO.v By this construction an effective draft within the inner casing is produced and the outside ain is. prevented from choking the inner casingor interfering with the escape of the products ofl combustion.

The intervening passages or spaces between the inner and outer casings are alternat-elly open and closed, and they extend: entirely around the inner casingand are adaptedl to-be operated on by the wind when blowing from' any quarter.

It will be seen that the ventilator for chi-mneys is exceeding-ly simple and inexpensive in* construction and that it is adapted to increase the draft of.l ach-imney and is capable of effectual-ly preventing the latter from becoming choked.

What is claimed is 11. AL device of theclass-describedcomprisat their upper ends, and the inner casing being provided at the lower ends of the closed passages with apertures, substantially as dev scribed.

3. A device of the classdescribed comprising-an inner casingprovided with apertures, any outer casing, a series vof vertical-partitions 4forming passages between the casings, capsarranged at intervals and closing. the alternate passages, said capsA being located di'- rectly above the apertures, substantially as described.

et. A device of the classdescribed compr-ising an inner casing providedwith apertures,

an outer casing spaced fromathe inner casing,

a series of vertical boxeslocaied betweenthe casings and at points betweeny the'said apertures, and caps located over the spaces between the boxes and connectingthe adjacent y sides of the sama-substantially asdescribed.

5. A device of the class described compris- `ing an inner casing having apertures provided` with interior guards arranged. todeiect the smoke and other products of combust-ion from the said apertures, an outer casing spaced from the inner cas-ing, a-nannular series of partitions arranged in thelspace between the casings,rand thecapssupported by the partitions and arranged at intervals to form closed passages` at thev said` apertures,-

substantially as described.

Intestimony that I claim the foregoing as my own I. have hereto affixed my signature in the presence of two witnesses.v Y

ERNST KREUTZBERG. Witnesses:

WM. H. KREUTZBERG, P. S. WEIDMAN. 

